峰位分析的准确性是能谱稳谱质量的基础。为了提高峰位计算准确性和稳谱质量，针对航空γ能谱谱线高噪声特征，研究应用了采用柯西函数对称零面积法分析峰位，并且对比常用的高斯函数拟合法、峰面积法寻峰效果。结果表明针对高噪声的谱线寻峰，采用柯西函数的对称零面积法峰位计算方法，分析峰位更准确。%The accuracy of peak position analysis is the basis of the quality of stabled spectrum .In order to im-prove the accuracy of peak position calculation and the quality of stabled spectrum , in view of the high noise character of airborne gamma -ray spectrum , this article studied symmetric zero area of Cauchy function to ana-lyze the peak position and compared this method with the commonly used Gaussian function fitting method , the peak area method .Based on high noise characteristics of spectral peak search , the results show that it is more accurate to adopt the symmetric zero -area of the Cauchy function calculation method to analyze the peak posi-tion.
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